Finding the Fourth Proportional to 10,499.91, 15,748.63 and 4,262.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,499.91 : 15,748.63 = 4,262.70 : x
2. Step 2: Convert to fraction form
   10,499.91/15,748.63 = 4,262.70/x
3. Step 3: Cross multiply
   10,499.91x = 15,748.63 × 4,262.70
4. Step 4: Simplify right side
   10,499.91x = 67,131,685.10
5. Step 5: Solve for x
   x = 67,131,685.10/10,499.91
6. Step 6: Final answer
   x = 6,393.55